Microsoft · Security update · July 11, 2023

KB5028171: July 2023 cumulative update for Windows Server 2022

KB5028171, released July 11, 2023, fixes 99 CVEs across 2 products. 3 of them are being exploited (CVE-2023-36874); 3 on CISA KEV. Patch Radar priority: Patch now.

Patch now3 on CISA KEV

CVEs closed

7 rated Critical

Exploited

CVE-2023-36874

Exploitation more likely

Microsoft's assessment

Highest EPSS

0.4256

98th percentile

Priority of the 99 CVEs

Patch now 3
                                Urgent 11
                                High 44
                                Routine 41

Applies to

Product	Build after install
Windows Server 2022	20348.1850
Windows Server 2022 (Server Core installation)	20348.1850

CVEs this fix closes

Priority	CVE	Component	Impact	CVSS	EPSS	Exploitation
Patch now	CVE-2023-36874	Windows Error Reporting	Elevation of Privilege	7.8	0.4256	KEVExploited
Patch now	CVE-2023-32046	Windows MSHTML Platform	Elevation of Privilege	7.8	0.0997	KEVExploited
Patch now	CVE-2023-32049	Windows SmartScreen	Security Feature Bypass	8.8	0.0416	KEVExploited
Urgent	CVE-2022-38023	Windows Netlogon	Elevation of Privilege	8.1	0.0275	More likely
Urgent	CVE-2023-32057	Windows Message Queuing	Remote Code Execution	9.8	0.0221	Exploitation Less Likely
Urgent	CVE-2023-35365	Windows Routing and Remote Access Service (RRAS)	Remote Code Execution	9.8	0.0177	Exploitation Less Likely
Urgent	CVE-2023-35366	Windows Routing and Remote Access Service (RRAS)	Remote Code Execution	9.8	0.0169	Exploitation Less Likely
Urgent	CVE-2023-35367	Windows Routing and Remote Access Service (RRAS)	Remote Code Execution	9.8	0.0169	Exploitation Less Likely
Urgent	CVE-2023-35352	Windows Remote Desktop	Security Feature Bypass	7.5	0.0137	More likely
Urgent	CVE-2023-36871	Azure Active Directory	Security Feature Bypass	6.5	0.0117	More likely
Urgent	CVE-2023-21526	Windows Netlogon	Information Disclosure	7.4	0.0113	More likely
Urgent	CVE-2023-35297	Windows PGM	Remote Code Execution	8.1	0.0112	Exploitation Less Likely
Urgent	CVE-2023-35315	Windows Layer-2 Bridge Network Driver	Remote Code Execution	8.8	0.0068	Exploitation Less Likely
Urgent	CVE-2023-35312	Windows VOLSNAP.SYS	Elevation of Privilege	7.8	0.0049	More likely
High	CVE-2023-35338	Windows Peer Name Resolution Protocol	Denial of Service	7.5	0.0196	Exploitation Less Likely
High	CVE-2023-35339	Windows CryptoAPI	Denial of Service	7.5	0.0189	Exploitation Less Likely
High	CVE-2023-35330	Windows SPNEGO Extended Negotiation	Denial of Service	7.5	0.0186	Exploitation Less Likely
High	CVE-2023-35325	Windows Print Spooler Components	Information Disclosure	7.5	0.0179	Exploitation Less Likely
High	CVE-2023-32084	Windows HTTP.sys	Denial of Service	7.5	0.0178	Exploitation Less Likely
High	CVE-2023-35298	Windows HTTP.sys	Denial of Service	7.5	0.0178	Exploitation Less Likely
High	CVE-2023-32044	Windows Message Queuing	Denial of Service	7.5	0.0152	Exploitation Less Likely
High	CVE-2023-32045	Windows Message Queuing	Denial of Service	7.5	0.0152	Exploitation Less Likely
High	CVE-2023-35303	Microsoft Windows Codecs Library	Remote Code Execution	8.8	0.0145	Exploitation Less Likely
High	CVE-2023-35302	Microsoft Printer Drivers	Remote Code Execution	8.8	0.0144	Exploitation Less Likely
High	CVE-2023-35300	Windows Remote Procedure Call	Remote Code Execution	8.8	0.0139	Exploitation Less Likely

Released the same day

KB4464506
Microsoft Office 2013 RT Service Pack 1, Microsoft Office 2013 Service Pack 1 (32-bit editions), Microsoft Office 2013 Service Pack 1 (64-bit editions)
KB4475581
Microsoft Office 2016 (32-bit edition), Microsoft Office 2016 (64-bit edition)
KB4493154
Microsoft Office 2016 (32-bit edition), Microsoft Office 2016 (64-bit edition)
KB5001952
Microsoft Office 2013 RT Service Pack 1, Microsoft Office 2013 Service Pack 1 (32-bit editions), Microsoft Office 2013 Service Pack 1 (64-bit editions)
KB5002058
Microsoft Office 2016 (32-bit edition), Microsoft Office 2016 (64-bit edition)
KB5002069
Microsoft Office 2013 RT Service Pack 1, Microsoft Office 2013 Service Pack 1 (32-bit editions), Microsoft Office 2013 Service Pack 1 (64-bit editions)
KB5002400
Microsoft Office 2013 RT Service Pack 1, Microsoft Office 2013 Service Pack 1 (32-bit editions), Microsoft Office 2013 Service Pack 1 (64-bit editions)
KB5002406
Microsoft Word 2016 (32-bit edition), Microsoft Word 2016 (64-bit edition)
KB5002411
Microsoft Word 2013 RT Service Pack 1, Microsoft Word 2013 Service Pack 1 (32-bit editions), Microsoft Word 2013 Service Pack 1 (64-bit editions)
KB5002419
Microsoft Office 2016 (32-bit edition), Microsoft Office 2016 (64-bit edition)
KB5002421
Microsoft Office Online Server
KB5002423
Microsoft SharePoint Server 2019

Vendor advisory

https://support.microsoft.com/help/5028171

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